function frameLoca(item){
	switch(item)
	{
		case "zlfx":
			parent.leftFrame.location.href="left.php?item="+item;
			parent.mainFrame.location.href="main.php?item="+item;
			break;
		case "top50":
			parent.leftFrame.location.href="left.php?item="+item;
			parent.mainFrame.location.href="main.php?item="+item;
			break;
		case "fwmx":
			parent.leftFrame.location.href="left.php?item="+item;
			parent.mainFrame.location.href="main.php?item="+item;
			break;
		case "llmx":
			parent.leftFrame.location.href="left.php?item="+item;
			parent.mainFrame.location.href="main.php?item="+item;
			break;
		case "bdjk":
			parent.leftFrame.location.href="left.php?item="+item;
			parent.mainFrame.location.href="main.php?item="+item;
			break;
		case "ssjc":
			parent.leftFrame.location.href="left.php?item="+item;
			parent.mainFrame.location.href="main.php?item="+item;
			break;
		case "xtgl":
			parent.leftFrame.location.href="left.php?item="+item;
			parent.mainFrame.location.href="main.php?item="+item;
			break;
		default:
			parent.leftFrame.location.href="left.php";
			parent.mainFrame.location.href="main.php";
			break;
	}
}